# US 10,480,752 B2 · Structurally reinforced illumination panels and a method of making the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,480,752 B2 - Document ID: US10480752B2 - Status: Granted - Kind: B2 - Application number: 15/442,682 - Filed: 2017-02-26 - Published: 2017-08-31 - Granted: 2019-11-19 - Earliest claimed: 2016-02-27 - Assignees: S.V.V. Technology Innovations, Inc. - Applicants: Sergiy Vasylyev - Inventors: Sergiy Vasylyev - Web page: https://patentgrep.com/patent/US10480752B2 ## CPC - F21V 7/0083: {Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane (combination of two or more reflectors F21V7/0025)} - F21V 13/02: Combinations of only two kinds of elements - F21V 33/006: {General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols} - G02F 1/133603: {with LEDs} - G02F 1/133605: {including specially adapted reflectors} - G02F 1/133606: {including a specially adapted diffusing, scattering or light controlling members} - F21V 7/0008: {providing for indirect lighting} - F21V 11/16: using sheets without apertures, e.g. fixed - F21Y 2103/10: comprising a linear array of point-like light-generating elements - F21Y 2107/90: on two opposite sides of supports or substrates - F21Y 2115/10: Light-emitting diodes [LED] - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract An illumination panel including an optically transmissive, hollow multiwall structure and an array of LED strips distributed within a series of hollow chambers formed by the multiwall structure. The hollow multiwall structure is formed by two or more sheets of optically clear or translucent material joined by a plurality of transverse ribs. Each LED strip includes an array of interconnected light emitting diodes and is preferably provided with one or more light diffusing or beam-shaping elements included into one or more hollow chambers. ## Claims ### Claim 1 A structurally reinforced illumination panel having a multiwall sheet-form structure, comprising: a first sheet formed by an optically transmissive material; a second sheet extending parallel to the first sheet; a plurality of transverse ribs joining the first and second sheets and defining a plurality of hollow chambers extending substantially parallel to each other; a plurality of LED strips positioned within the plurality of hollow chambers, each of the LED strips including a plurality of light emitting diodes; and a plurality of strips of a light diffusing material positioned within the plurality of hollow chambers and each disposed in energy receiving relationship with respect to at least one of the LED strips, wherein at least one of the plurality of strips of a light diffusing material is shaped in the form of a sleeve that is at least partially enclosing at least one of the plurality of LED strips. ### Claim 2 (depends on 1) The illumination panel of claim 1, wherein each of the first sheet, the second sheet, and the plurality of transverse ribs have optical transmittance between 50% and 90% in visible wavelengths. ### Claim 3 (depends on 1) The illumination panel of claim 1, wherein the plurality of transverse ribs forms an integral structure with at least one of the first and second sheets. ### Claim 4 (depends on 1) The illumination panel of claim 1, wherein the plurality of light emitting diodes is distributed over an extended area according to a two-dimensional pattern. ### Claim 5 (depends on 1) The illumination panel of claim 1, wherein the multiwall panel is configured to emit light from both the first and second sheets. ### Claim 6 (depends on 1) The illumination panel of claim 1, wherein said light diffusing material is of a reflective type. ### Claim 7 (depends on 1) The illumination panel of claim 1, wherein said light diffusing material is of a transmissive type. ### Claim 8 (depends on 1) The illumination panel of claim 1, wherein each of the strips of a light diffusing material is attached to one or more inner walls of the plurality of hollow chambers. ### Claim 9 (depends on 1) The illumination panel of claim 1, wherein at least one of the plurality of strips of a light diffusing material has a cylindrical shape. ### Claim 10 (depends on 1) The illumination panel of claim 1, wherein at least one of the plurality of strips of a light diffusing material comprises one or more folds. ### Claim 11 (depends on 1) The illumination panel of claim 1, wherein said plurality of light emitting diodes is arranged into at least three groups connected in parallel and each having at least three said light emitting diodes connected in series, and wherein at least two of said plurality of LED strips located in different said hollow chambers are connected in series and at least two of the series-connected LED strips are connected in parallel to a single power supply. ### Claim 12 (depends on 1) The illumination panel of claim 1, wherein at least portions of the plurality of strips of a light diffusing material are separated from the plurality of LED strips and inner walls of the plurality of hollow chambers by at least a layer of air. ### Claim 13 (depends on 1) The illumination panel of claim 1, wherein at one of the LED strips includes individually digitally addressable light emitting diodes. ### Claim 14 (depends on 1) The illumination panel of claim 1, wherein at least one of the first and second sheets has an opacity substantially obscuring a direct view of said plurality of light emitting diodes when said plurality of light emitting diodes are in a non-illuminated state. ### Claim 15 (depends on 1) The illumination panel of claim 1, wherein the plurality of light emitting diodes is attached to a common substrate that is reflective or lightly colored. ### Claim 16 (depends on 1) The illumination panel of claim 1, wherein the first sheet has a textured surface. ### Claim 17 (depends on 1) The illumination panel of claim 1, wherein at least one of the LED strips is bonded to a surface of the second sheet using a layer of an adhesive material. ### Claim 18 A structurally reinforced illumination panel having a multiwall sheet-form structure, comprising: a first sheet formed by an optically transmissive material; a second sheet extending parallel to the first sheet; a plurality of transverse ribs joining the first and second sheets and defining a plurality of first hollow chambers extending substantially parallel to each other; a plurality of LED strips positioned within the plurality of first hollow chambers, each of the LED strips including a plurality of light emitting diodes; and a second hollow chamber extending perpendicular to said plurality of first hollow chambers, wherein at least one of the plurality of LED strips is at least partially enclosed in a sleeve formed from a light diffusing material. ### Claim 19 A method of forming a structurally reinforced illumination panel, comprising: providing a hollow multiwall structural panel comprising a plurality of spaced-apart plastic sheets that transmit visible light and are joined with reinforcing members that define a plurality of hollow chambers; providing a plurality of LED strips; at least partially enclosing at least one of the plurality of LED strips in a sleeve formed from a strip of a light diffusing material; inserting each of said plurality of LED strips into said hollow chambers through open ends of said hollow chambers; and electrically connecting said plurality of LED strips to a power supply.